export shape keys as texture
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QuantumCoderQC
parent
93563dbba5
commit
b7941d2fa8
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@ -22,6 +22,8 @@ import numpy as np
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import bpy
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from mathutils import *
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import bmesh
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import arm.assets as assets
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import arm.exporter_opt as exporter_opt
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import arm.log as log
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@ -1114,6 +1116,119 @@ class ArmoryExporter:
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if 'constraints' not in oskin:
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oskin['constraints'] = []
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self.add_constraints(bone, oskin, bone=True)
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def export_shape_keys(self, bobject: bpy.types.Object, export_mesh: bpy.types.Mesh, out_mesh):
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max_shape_keys = 32
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output_dir = bpy.path.abspath('//') + "Bundled\\"
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name = bobject.data.name
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vert_pos = []
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vert_nor = []
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names = []
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default_values = []
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count = 0
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for shape_key in bobject.data.shape_keys.key_blocks:
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if(count > max_shape_keys):
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break
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vert_data = self.get_vertex_data_from_shape_key(shape_key)
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vert_pos.append(vert_data['pos'])
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vert_nor.append(vert_data['nor'])
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names.append(shape_key.name)
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default_values.append(shape_key.value)
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count += 1
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min, max = self.bake_to_image(vert_pos, vert_nor, name, output_dir)
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morph_target = {}
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morph_target['morph_target_ref'] = names
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morph_target['morph_target_defaults'] = default_values
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morph_target['num_morph_targets'] = count
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morph_target['morph_scale'] = max - min
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morph_target['morph_offset'] = min
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out_mesh['morph_target'] = morph_target
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self.create_morph_uv_set(bobject)
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return
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def get_vertex_data_from_shape_key(self, shape_key_data):
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vert_pos = shape_key_data.data.values()
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vert_nor = shape_key_data.normals_vertex_get()
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num_verts = len(vert_pos)
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pos = []
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nor = []
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for i in range(num_verts):
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pos.append(list(vert_pos[i].co))
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temp = []
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for j in range(3):
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temp.append(vert_nor[j + i * 3])
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nor.append(temp)
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return {'pos': pos, 'nor': nor}
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def bake_to_image(self, vert_pos, vert_nor, name, output_dir):
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pos_array = np.array(vert_pos)
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nor_array = np.array(vert_nor)
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pos_max = np.amax(pos_array)
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pos_min = np.amin(pos_array)
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pos_array_scaled = np.interp(pos_array, (pos_min, pos_max), (0, 1))
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self.write_output_image(pos_array_scaled, name + '_pos', output_dir)
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nor_array_scaled = np.interp(nor_array, (-1, 1), (0, 1))
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self.write_output_image(nor_array_scaled, name + '_nor', output_dir)
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return pos_min, pos_max
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def write_output_image(self, data, name, output_dir):
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size = len(data[0]), len(data)
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pixel_list = []
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for y in range(size[1]):
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for x in range(size[0]):
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# assign RGBA
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pixel_list.append(data[y, x, 0])
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pixel_list.append(data[y, x, 1])
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pixel_list.append(data[y, x, 2])
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pixel_list.append(1.0)
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image = bpy.data.images.new(name, width = size[0], height = size[1], is_data = True)
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image.pixels = pixel_list
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image.save_render(output_dir + name + ".png", scene= bpy.context.scene)
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bpy.data.images.remove(image)
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def create_morph_uv_set(self, obj):
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if(obj.data.uv_layers.get('UVMap_shape_key') is None):
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obj.data.uv_layers.new(name = 'UVMap_shape_key')
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bm = bmesh.new()
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bm.from_mesh(obj.data)
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uv_layer = bm.loops.layers.uv.get('UVMap_shape_key')
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pixel_size = 1.0 / len(bm.verts)
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i= 0
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for v in bm.verts:
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for l in v.link_loops:
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uv_data = l[uv_layer]
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uv_data.uv = Vector(((i + 0.5) * pixel_size, 0.0))
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i += 1
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bm.to_mesh(obj.data)
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bm.free()
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def write_mesh(self, bobject: bpy.types.Object, fp, out_mesh):
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if bpy.data.worlds['Arm'].arm_single_data_file:
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@ -1142,8 +1257,15 @@ class ArmoryExporter:
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num_verts = len(loops)
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num_uv_layers = len(exportMesh.uv_layers)
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is_baked = self.has_baked_material(bobject, exportMesh.materials)
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has_tex = (self.get_export_uvs(bobject.data) and num_uv_layers > 0) or is_baked
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self.has_shape_key = False
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if('morph_target' in o):
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self.has_shape_key = True
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print(bobject.name)
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print(self.has_shape_key)
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has_tex = (self.get_export_uvs(bobject.data) and num_uv_layers > 0) or is_baked or self.has_shape_key
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has_tex1 = has_tex and num_uv_layers > 1
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print(has_tex)
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print(has_tex1)
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num_colors = len(exportMesh.vertex_colors)
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has_col = self.get_export_vcols(bobject.data) and num_colors > 0
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has_tang = self.has_tangents(bobject.data)
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@ -1410,52 +1532,19 @@ Make sure the mesh only has tris/quads.""")
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struct_flag = False
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# Save the morph state if necessary
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active_shape_key_index = bobject.active_shape_key_index
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show_only_shape_key = bobject.show_only_shape_key
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current_morph_value = []
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active_shape_key_index = 0
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show_only_shape_key = False
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current_morph_value = 0
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shape_keys = ArmoryExporter.get_shape_keys(mesh)
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if shape_keys:
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active_shape_key_index = bobject.active_shape_key_index
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show_only_shape_key = bobject.show_only_shape_key
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current_morph_value = bobject.active_shape_key.value
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bobject.active_shape_key_index = 0
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bobject.show_only_shape_key = True
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base_index = 0
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relative = shape_keys.use_relative
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if relative:
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morph_count = 0
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base_name = shape_keys.reference_key.name
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for block in shape_keys.key_blocks:
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if block.name == base_name:
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base_index = morph_count
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break
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morph_count += 1
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morph_count = 0
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for block in shape_keys.key_blocks:
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current_morph_value.append(block.value)
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block.value = 0.0
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if block.name != "":
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# self.IndentWrite(B"Morph (index = ", 0, struct_flag)
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# self.WriteInt(morph_count)
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# if (relative) and (morph_count != base_index):
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# self.Write(B", base = ")
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# self.WriteInt(base_index)
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# self.Write(B")\n")
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# self.IndentWrite(B"{\n")
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# self.IndentWrite(B"Name {string {\"", 1)
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# self.Write(bytes(block.name, "UTF-8"))
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# self.Write(B"\"}}\n")
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# self.IndentWrite(B"}\n")
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# TODO
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struct_flag = True
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morph_count += 1
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shape_keys.key_blocks[0].value = 1.0
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mesh.update()
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self.depsgraph.update()
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armature = bobject.find_armature()
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apply_modifiers = not armature
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@ -1463,6 +1552,15 @@ Make sure the mesh only has tris/quads.""")
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bobject_eval = bobject.evaluated_get(self.depsgraph) if apply_modifiers else bobject
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export_mesh = bobject_eval.to_mesh()
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if shape_keys:
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if(len(bobject.data.uv_layers) > 2):
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if(bobject.data.uv_layers.get('UVMap_shape_key') is not None):
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self.export_shape_keys(bobject, export_mesh, out_mesh)
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else:
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log.warn(oid + ' has 2 or more UV Maps. Shape keys are not supported for objects with 2 or more UV maps')
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else:
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self.export_shape_keys(bobject, export_mesh, out_mesh)
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if export_mesh is None:
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log.warn(oid + ' was not exported')
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return
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@ -1487,9 +1585,8 @@ Make sure the mesh only has tris/quads.""")
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if shape_keys:
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bobject.active_shape_key_index = active_shape_key_index
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bobject.show_only_shape_key = show_only_shape_key
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for m in range(len(current_morph_value)):
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shape_keys.key_blocks[m].value = current_morph_value[m]
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bobject.active_shape_key.value = current_morph_value
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self.depsgraph.update()
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mesh.update()
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